376568380

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1\times {\mathrm{521}}^1$

素因数の和:1110

約数の個数: 48

約数和(自身を含む): 805049280

約数和(自身を除く): 428480900

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 509, 521, 710, 1018, 1042, 1420, 2036, 2084, 2545, 2605, 5090, 5210, 10180, 10420, 36139, 36991, 72278, 73982, 144556, 147964, 180695, 184955, 265189, 361390, 369910, 530378, 722780, 739820, 1060756, 1325945, 2651890, 5303780, 18828419, 37656838, 75313676, 94142095, 188284190, 376568380]

約数ペア:

[(1, 376568380), (2, 188284190), (4, 94142095), (5, 75313676), (10, 37656838), (20, 18828419), (71, 5303780), (142, 2651890), (284, 1325945), (355, 1060756), (509, 739820), (521, 722780), (710, 530378), (1018, 369910), (1042, 361390), (1420, 265189), (2036, 184955), (2084, 180695), (2545, 147964), (2605, 144556), (5090, 73982), (5210, 72278), (10180, 36991), (10420, 36139)]